Planny
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CDL doesnt lock all 4 wheels, it locks both axles, so you can still get a wheel to spin on both axles, just as Jamesmartin posted
Disco II diff lock
- Thread starter James R
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Planny
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Sorry for the post above, I picked up on an older part of the thread as Im accessing on a mobile phone at the moment
thebiglad
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Yes it was an option. I honestly can't remember the history, but some had no lever but did have all the internals.
A D2 with traction control and a locked centre diff is pretty unstoppable.
It is possible that you can just get the extra bits and retro fit it. Search on the Ashcroft Transmission for CDL....I think there is even a video on Youtube about it
As always it depends on tyres and the quality of driver.
jamesmartin
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yes you can use all the parts from a 300 tdi (200 is different ) i have several times for people but you also need gear box top from 300(as has fitting for lever assembly ) and hi/low housing as well both easy to fit
thebiglad
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Also you need to match auto for auto or manual for manual - if you understand what I mean.
If for example yours is a manual 'box car, a TDi 300 auto transfer box linkage won't work, and vice versa.
Dave
If for example yours is a manual 'box car, a TDi 300 auto transfer box linkage won't work, and vice versa.
Dave
50 pence
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I,ve modified a standard high/low lever from the D2, to engage/disengage the diff lock.
IMO, your lucky if your D2 has the diff lock internals, as all you need to get is the lever.
I, as do many others, had to find, and fit, a complete replacement transfer box !.
Del.
Thanks to all for the info guys...I'm sure my D2 (registered April 2001) is amongst the last which has the internals but no linkage
Nice job on that modification Del...if only I had a workshop..! These days it's wheel ramps or axle stands and alot of lugging heavy tools around Hmmmm...I wonder if I could fit a workbench and good vice in my livingroom
Nice job on that modification Del...if only I had a workshop..! These days it's wheel ramps or axle stands and alot of lugging heavy tools around
Hmmmm...I wonder if I could fit a workbench and good vice in my livingroom 
discool
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Not quite right, it doesn't lock the axles, it locks the drive to the axles, if it did you wouldn't get any wheel spin.
Locking axles/diffs are now an option at the rear of the newish discos and RR's models.
Planny
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What i meant was it locks both axles with each other, I didnt say locks front & rear diiffs
discool
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Telling us what you meant to say that's OK. but then strange telling us what you didn't say
Planny
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Thats cuz I was busy at the time but it took you a few days to critisize me. And you knew what I meant anyway due to the fact I stated that you would still get a wheel to spin on both axles.
50 pence
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Thanks to all for the info guys...I'm sure my D2 (registered April 2001) is amongst the last which has the internals but no linkage
Nice job on that modification Del...if only I had a workshop..! These days it's wheel ramps or axle stands and alot of lugging heavy tools around
Cheers mate.
After doing one, I git asked about doing some more, so I did another six !
They all went, and now I,m doing another twelve !!. ( and most of them are spoken for ).
Del.
harper90
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(mines an 03 XS with TC but no CDL),
CDL and axle lockers do not in any way prevent wheel spin. You must understand this to grasp the principle. A wheel which has no traction cannot be forced to have traction. A diff lock (centre or axle), just ensures that the two things it's joining together (whether that be props with a CDL or wheels with an air locker) spin at the same speed, rather, ensuring a wheel WITH traction still receives drive, rather than it being lost on spinning wheel.
If the front wheels both have traction, and the back don't, the CDL will ensure that the front end receives the same amount of 'drive' as the rear, helping the front end pull you out (and vice versa).
If the rear left wheel has traction, and the rear right is spinning, a rear locker will ensure that the rear left wheel receives the same amount of drive as the rear right, and the left wheel will pull you out. THE RIGHT HAND WHEEL WILL STILL SPIN AT THE SAME RATE AS THE LEFT, BUT IT STILL HAS NO TRACTION!
The benefit then with TC is that not only will it offer power to a wheel that has got traction, it will be biased to that wheel, and will reduce power to spinning wheel. So it won't 'lock' the wheels as such, because they can still spin at different speeds, but drive is directed towards wheels with traction, whether that be one, two, three, or 4.
As a conclusion, I would say that on a D2 with TC but no CDL, there is no point putting a CDL on unless you're going to put a rear locker on too, because the TC manages the wheels independently, so what's the point in locking the centre, because if you're stuck, and the TC detects that there is loss of traction at either the back or front, it will direct the power to the wheels with traction anyway, rendering a CDL unnecessary. If there is only traction on, say, the back right wheel, and the rest are spinning, a CDL wouldn't help, only a rear locker would, but TC would help in this scenario.
Learn to love the electrics, they're there to help. If they were **** and didn't work, all the new LR's and RR's would have big metal clunky levers, and no electrics. Let's move forward not back.
(sorry about the long post, once I'd started I couldn't stop!!)
CDL and axle lockers do not in any way prevent wheel spin. You must understand this to grasp the principle. A wheel which has no traction cannot be forced to have traction. A diff lock (centre or axle), just ensures that the two things it's joining together (whether that be props with a CDL or wheels with an air locker) spin at the same speed, rather, ensuring a wheel WITH traction still receives drive, rather than it being lost on spinning wheel.
If the front wheels both have traction, and the back don't, the CDL will ensure that the front end receives the same amount of 'drive' as the rear, helping the front end pull you out (and vice versa).
If the rear left wheel has traction, and the rear right is spinning, a rear locker will ensure that the rear left wheel receives the same amount of drive as the rear right, and the left wheel will pull you out. THE RIGHT HAND WHEEL WILL STILL SPIN AT THE SAME RATE AS THE LEFT, BUT IT STILL HAS NO TRACTION!
The benefit then with TC is that not only will it offer power to a wheel that has got traction, it will be biased to that wheel, and will reduce power to spinning wheel. So it won't 'lock' the wheels as such, because they can still spin at different speeds, but drive is directed towards wheels with traction, whether that be one, two, three, or 4.
As a conclusion, I would say that on a D2 with TC but no CDL, there is no point putting a CDL on unless you're going to put a rear locker on too, because the TC manages the wheels independently, so what's the point in locking the centre, because if you're stuck, and the TC detects that there is loss of traction at either the back or front, it will direct the power to the wheels with traction anyway, rendering a CDL unnecessary. If there is only traction on, say, the back right wheel, and the rest are spinning, a CDL wouldn't help, only a rear locker would, but TC would help in this scenario.
Learn to love the electrics, they're there to help. If they were **** and didn't work, all the new LR's and RR's would have big metal clunky levers, and no electrics. Let's move forward not back.
(sorry about the long post, once I'd started I couldn't stop!!)
S3ATS
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Cheers mate.
After doing one, I git asked about doing some more, so I did another six !
They all went, and now I,m doing another twelve !!. ( and most of them are spoken for ).
Del.
How much they going for? Any left?
shiftyoldscoob
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I have just read rite through this thread and it's been extremely helpful to say the least!
Cleared up a few uncertainties!
Cleared up a few uncertainties!
darrenm
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My. 2004 Es premium has diff lock as standard
drewster
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and my 54 es premium
50 pence
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(mines an 03 XS with TC but no CDL),
CDL and axle lockers do not in any way prevent wheel spin. You must understand this to grasp the principle. A wheel which has no traction cannot be forced to have traction. A diff lock (centre or axle), just ensures that the two things it's joining together (whether that be props with a CDL or wheels with an air locker) spin at the same speed, rather, ensuring a wheel WITH traction still receives drive, rather than it being lost on spinning wheel.
If the front wheels both have traction, and the back don't, the CDL will ensure that the front end receives the same amount of 'drive' as the rear, helping the front end pull you out (and vice versa).
If the rear left wheel has traction, and the rear right is spinning, a rear locker will ensure that the rear left wheel receives the same amount of drive as the rear right, and the left wheel will pull you out. THE RIGHT HAND WHEEL WILL STILL SPIN AT THE SAME RATE AS THE LEFT, BUT IT STILL HAS NO TRACTION!
The benefit then with TC is that not only will it offer power to a wheel that has got traction, it will be biased to that wheel, and will reduce power to spinning wheel. So it won't 'lock' the wheels as such, because they can still spin at different speeds, but drive is directed towards wheels with traction, whether that be one, two, three, or 4.
As a conclusion, I would say that on a D2 with TC but no CDL, there is no point putting a CDL on unless you're going to put a rear locker on too, because the TC manages the wheels independently, so what's the point in locking the centre, because if you're stuck, and the TC detects that there is loss of traction at either the back or front, it will direct the power to the wheels with traction anyway, rendering a CDL unnecessary. If there is only traction on, say, the back right wheel, and the rest are spinning, a CDL wouldn't help, only a rear locker would, but TC would help in this scenario.
Learn to love the electrics, they're there to help. If they were **** and didn't work, all the new LR's and RR's would have big metal clunky levers, and no electrics. Let's move forward not back.
(sorry about the long post, once I'd started I couldn't stop!!)
A great post, with some good points well put !.
I dissagree slightly with your comments about it being pointless having a cdl on a D2, without a rear locker !.
I have found that when negotiating uneven, loos ground, that having the cdl engaged, helps keep the TC from engaging as often. This is a good thing because before the TC can kick in it ahs to sence wheelspin, and although the system catches up very quickly, in some cirumstances, this small amount of wheelspin can dig you in and stop you.
Also, you,d be pretty stuffed without a cdl if you break a prop or diff !
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